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371424221 = 7471128949
BaseRepresentation
bin10110001000110…
…111101111011101
3221212220022020122
4112020313233131
51230041033341
6100504524325
712130024310
oct2610675735
9855808218
10371424221
11180728573
12a44806a5
135bc4795c
1437486977
152291b94b
hex16237bdd

371424221 has 8 divisors (see below), whose sum is σ = 433516800. Its totient is φ = 311589648.

The previous prime is 371424203. The next prime is 371424223. The reversal of 371424221 is 122424173.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-371424221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (371424223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564146 + ... + 564803.

It is an arithmetic number, because the mean of its divisors is an integer number (54189600).

Almost surely, 2371424221 is an apocalyptic number.

It is an amenable number.

371424221 is a deficient number, since it is larger than the sum of its proper divisors (62092579).

371424221 is a wasteful number, since it uses less digits than its factorization.

371424221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129003.

The product of its digits is 2688, while the sum is 26.

The square root of 371424221 is about 19272.3693665309. The cubic root of 371424221 is about 718.8253873692.

Adding to 371424221 its reverse (122424173), we get a palindrome (493848394).

The spelling of 371424221 in words is "three hundred seventy-one million, four hundred twenty-four thousand, two hundred twenty-one".

Divisors: 1 7 47 329 1128949 7902643 53060603 371424221